The Circored pilot plant is based on Metso’s proprietary technology and enables continuous pre-reduction of iron ore using hydrogen as the only reducing agent. The facility integrates several key systems, including pre-heating, reduction, gas cleaning, and recirculation of hydrogen and dust. Electric heaters are used to support operations with near zero-carbon emissions.
Parizat Pandey, Director of Direct Reduced Iron (DRI) at Metso, said: “This pilot plant is a significant step in demonstrating the readiness of the Circored™ technology. It allows us to validate process parameters and support our customers in their transition to low-carbon steelmaking.”
The pilot plant is designed to test a wide range of iron ore types, which will generate process data for engineering and future large-scale commercial plants. It also provides insight into defining the operating window for different ore qualities, strengthening its potential for broader industrial use.
The Circored direct reduction process can be integrated with Metso’s DRI Smelting Furnace or other compatible smelting technologies. Both the Circored process and the DRI Smelting Furnace are included in the Metso Plus offering, which brings together solutions aimed at supporting sustainable and efficient steelmaking pathways.
The new facility not only demonstrates technical readiness but also underscores the role of hydrogen in decarbonizing the steel industry. By replacing conventional reducing agents with hydrogen, the process significantly lowers carbon emissions, positioning it as an important option for future commercial applications.
Metso’s pilot plant in Frankfurt will serve as a platform for advancing knowledge and collaboration with industry partners. It reflects the company’s strategy to align with global climate targets and meet the demand for cleaner production methods in heavy industry.
By combining hydrogen-based reduction with advanced furnace technology, Metso aims to provide flexible and scalable solutions for steelmakers worldwide. The Circored pilot plant represents a milestone in this approach, offering both technological validation and practical data that will inform the design of next-generation industrial plants.
